chirrios4 chirrios4
  • 10-06-2020
  • Mathematics
contestada

The square of a number is 12 less than 7 times the number.what is the number?

Respuesta :

kaitlyngaudet5
kaitlyngaudet5 kaitlyngaudet5
  • 10-06-2020

Answer:

n = 3 or n = 4

Step-by-step explanation:

Let the unknown number be n.  

Then:

n² = 7n - 12

In standard quadratic form, we have:

n² - 7n + 12 = 0

In factored form, we have:

(n - 3)(n - 4) = 0, and so

n = 3 and n = 4

Answer Link

Otras preguntas

what's the area of this circle?
The larger leg of a right triangle is 3 cm longer than it's smaller leg.The hypotenuse is 6 cm longer than smaller leg. How many centimeters long  is the smalle
There are 27 pupils. There are twice as many boys than girls. how many boys and girls are there
need help.  collect like terms,    7x²+9x⁴-3x²-x⁴-4x²= _______
Convert 1.00atm of pressure to its equivalent in millimeters of mercury.
what is 14% of $59.99 and how do I figure this problem?
Imagine you are a driver, the driver went to England during the 13 hours of travel, and aircraft to fly using indonesia with a time of 2 hours,,,, how old is th
Imagine you are a driver, the driver went to England during the 13 hours of travel, and aircraft to fly using indonesia with a time of 2 hours,,,, how old is th
what is the value of x if 6 + 7 - 9 + 4x = 12
The larger leg of a right triangle is 3 cm longer than it's smaller leg.The hypotenuse is 6 cm longer than smaller leg. How many centimeters long  is the smalle